1000993451 has 4 divisors (see below), whose sum is σ = 1022291232. Its totient is φ = 979695672.

The previous prime is 1000993421. The next prime is 1000993463. The reversal of 1000993451 is 1543990001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1000993451 - 2¹⁰ = 1000992427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000993421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10648820 + ... + 10648913.

It is an arithmetic number, because the mean of its divisors is an integer number (255572808).

Almost surely, 2^1000993451 is an apocalyptic number.

1000993451 is a deficient number, since it is larger than the sum of its proper divisors (21297781).

1000993451 is an equidigital number, since it uses as much as digits as its factorization.

1000993451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21297780.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 1000993451 is about 31638.4805418971. The cubic root of 1000993451 is about 1000.3310407333.

The spelling of 1000993451 in words is "one billion, nine hundred ninety-three thousand, four hundred fifty-one".